.page-contact {
  padding-bottom: 0;
}

/* ---------- 首屏拼贴 ---------- */
.page-contact .ct-hero {
  padding-top: 4px;
  padding-bottom: 56px;
}

.page-contact .ct-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .ct-hero__kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: .85;
}

.page-contact .ct-hero__title {
  margin: 0 0 20px;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7.4vw, 60px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--hi);
}

.page-contact .ct-hero__lede {
  margin: 0 0 40px;
  max-width: 38em;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.78;
  color: var(--mute);
}

/* ---------- 三张不等宽通道卡 ---------- */
.page-contact .ct-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .ct-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 20px 22px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .ct-channel::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 74px;
  height: 74px;
  background: linear-gradient(225deg, rgba(63, 227, 210, .16) 0%, rgba(63, 227, 210, 0) 64%);
  pointer-events: none;
}

.page-contact .ct-channel::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 52px;
  height: 3px;
  background: var(--amber);
}

.page-contact .ct-channel--b::after {
  background: var(--cyan);
}

.page-contact .ct-channel--c::after {
  background: var(--flame);
}

.page-contact .ct-channel .tag {
  align-self: flex-start;
  margin: 0;
}

.page-contact .ct-channel__title {
  margin: 0;
  font-family: var(--font-sub);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--hi);
}

.page-contact .ct-channel__desc {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--mute);
}

.page-contact .ct-channel .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* 折叠清单 */
.page-contact .ct-details {
  border-top: 1px dashed var(--line);
  padding-top: 12px;
}

.page-contact .ct-details > summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-contact .ct-details > summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-details > summary::before {
  content: "+";
  font-size: 14px;
  line-height: 1;
}

.page-contact .ct-details[open] > summary::before {
  content: "–";
}

.page-contact .ct-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .ct-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.65;
  color: var(--mute);
}

.page-contact .ct-list__k {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-contact .ct-channel--b .ct-list__k {
  color: var(--cyan);
}

.page-contact .ct-channel--c .ct-list__k {
  color: var(--flame);
}

/* ---------- 编号章节 ---------- */
.page-contact .ct-block {
  padding-bottom: 72px;
}

.page-contact .ct-block__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding-top: 18px;
  margin-bottom: 26px;
  border-top: 2px solid var(--line);
}

.page-contact .ct-block__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--amber);
  line-height: 1.4;
}

.page-contact .ct-block__kicker {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-contact .ct-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.8vw, 38px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--hi);
}

.page-contact .ct-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .ct-copy p {
  margin: 0 0 16px;
  max-width: 38em;
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .ct-copy p:last-child {
  margin-bottom: 0;
}

.page-contact .ct-copy a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 227, 210, .35);
}

.page-contact .ct-copy a:hover,
.page-contact .ct-copy a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 联系方式面板 ---------- */
.page-contact .ct-contact {
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-contact .ct-contact__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 14px;
  align-items: center;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-contact__row:last-child {
  border-bottom: 0;
}

.page-contact .ct-contact__key {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-contact .ct-contact__val {
  grid-column: 1;
  grid-row: 2;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  line-height: 1.5;
  color: var(--hi);
  word-break: break-word;
}

.page-contact .ct-contact__copy {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
}

.page-contact .ct-contact__note {
  grid-column: 1 / -1;
  grid-row: 3;
  margin: 8px 0 0;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 侧注面板 ---------- */
.page-contact .ct-note {
  padding: 18px;
  background: rgba(63, 227, 210, .06);
  border-left: 3px solid var(--cyan);
}

.page-contact .ct-note--warn {
  background: rgba(255, 107, 61, .07);
  border-left-color: var(--flame);
}

.page-contact .ct-note__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .ct-note--warn .ct-note__label {
  color: var(--flame);
}

.page-contact .ct-note > p {
  margin: 0 0 10px;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mute);
}

.page-contact .ct-note > p:last-child {
  margin-bottom: 0;
}

.page-contact .ct-plain {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ct-plain li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 12px;
  padding-bottom: 9px;
  border-bottom: 1px solid rgba(42, 54, 104, .8);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--mute);
}

.page-contact .ct-plain li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .ct-plain b {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 400;
  letter-spacing: .02em;
  color: var(--hi);
}

/* ---------- 流程步骤 ---------- */
.page-contact .ct-steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-contact .ct-step {
  padding: 18px 16px 20px;
  background: var(--ink-800);
  border-top: 2px solid var(--line);
}

.page-contact .ct-step:nth-child(1) {
  border-top-color: var(--amber);
}

.page-contact .ct-step:nth-child(2) {
  border-top-color: var(--cyan);
}

.page-contact .ct-step:nth-child(3) {
  border-top-color: var(--cyan);
}

.page-contact .ct-step:nth-child(4) {
  border-top-color: var(--flame);
}

.page-contact .ct-step__n {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mute);
}

.page-contact .ct-step__t {
  margin: 0 0 8px;
  font-family: var(--font-sub);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--hi);
}

.page-contact .ct-step__d {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mute);
}

/* ---------- 图 ---------- */
.page-contact .ct-figure {
  margin: 30px 0 0;
}

.page-contact .ct-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  object-fit: cover;
}

.page-contact .ct-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  line-height: 1.65;
  color: var(--mute);
}

.page-contact .ct-figure--side {
  margin-top: 0;
}

/* ---------- 底部信息窄条 ---------- */
.page-contact .ct-tail {
  margin-top: 4px;
  background: var(--ink-800);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-tail__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 26px 0;
}

.page-contact .ct-tail__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-contact .ct-tail__addr {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--hi);
}

.page-contact .ct-tail__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--mute);
}

.page-contact .ct-tail__mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--hi);
  word-break: break-word;
}

.page-contact .ct-tail__dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--line);
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-contact__row {
    grid-template-columns: 104px minmax(0, 1fr) auto;
    padding: 20px 24px;
  }

  .page-contact .ct-contact__key {
    grid-column: 1;
    grid-row: 1;
  }

  .page-contact .ct-contact__val {
    grid-column: 2;
    grid-row: 1;
  }

  .page-contact .ct-contact__copy {
    grid-column: 3;
    grid-row: 1;
  }

  .page-contact .ct-contact__note {
    grid-column: 2 / -1;
    grid-row: 2;
    margin: 6px 0 0;
  }

  .page-contact .ct-tail__inner {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
  }
}

@media (min-width: 860px) {
  .page-contact .ct-block__head {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-contact .ct-block__num {
    padding-top: 6px;
  }

  .page-contact .ct-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-channels {
    grid-template-columns: 1.5fr 1fr .82fr;
    gap: 18px;
    align-items: start;
  }

  .page-contact .ct-split {
    grid-template-columns: 1.4fr minmax(0, .85fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .ct-figure--side {
    margin-top: 8px;
  }
}

@media (min-width: 1200px) {
  .page-contact .ct-block {
    padding-bottom: 88px;
  }
}